ó i4Vdc@sÎdZddlmZddlZddlmZddlmZddlm Z ddl m Z dd l m Z d efd „ƒYZd efd „ƒYZdefd„ƒYZdefd„ƒYZdS(ul "Rel objects" for related fields. "Rel objects" (for lack of a better name) carry information about the relation modeled by a related field and provide some utility functions. They're stored in the ``remote_field`` attribute of the field. They also act as reverse fields for the purposes of the Meta API because they're the closest concept currently available. iÿÿÿÿ(tunicode_literalsN(t exceptions(tRemovedInDjango20Warning(t smart_text(tcached_propertyi(tBLANK_CHOICE_DASHtForeignObjectRelcBsmeZdZeZeZeZeZeZ dddedd„Z e d„ƒZ ed„ƒZed„ƒZe d„ƒZe d„ƒZed„ƒZed„ƒZed „ƒZed „ƒZed „ƒZd „Zd „Zd„Ze d„ƒZd„Zeeed„Zed„Zd„Z d„Z!d„Z"d„Z#dd„Z$d„Z%d„Z&RS(uº Used by ForeignObject to store information about the relation. ``_meta.get_fields()`` returns this class to provide access to the field flags for the reverse relation. cCsg||_||_||_||_|dkr6in||_||_||_t|_ t |_ dS(N( tfieldtmodelt related_nametrelated_query_nametNonetlimit_choices_tot parent_linkt on_deletetFalset symmetricaltTruetmultiple(tselfRttoR R R R R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyt__init__*s       cCstjdtdƒ|jS(Nu\Usage of ForeignObjectRel.to attribute has been deprecated. Use the model attribute instead.i(twarningstwarnRR(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyR;s cCs |jƒS(N(t is_hidden(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pythiddenCscCs |jjƒS(N(RR (R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pytnameGscCs|jS(N(R(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyt remote_fieldKscCs?|jƒdj}t|ƒdkr7tjdƒ‚n|dS(u When filtering against this relation, returns the field on the remote model against which the filtering should happen. iÿÿÿÿiu1Can't use target_field for multicolumn relations.i(t get_path_infot target_fieldstlenRt FieldError(RR((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyt target_fieldOscCs%|jjstdƒ‚n|jjS(NuVThis property can't be accessed before self.field.contribute_to_class has been called.(RRtAttributeError(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyt related_modelZs  cCs |jjS(N(Rt many_to_many(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyR#ascCs |jjS(N(Rt one_to_many(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyt many_to_oneescCs |jjS(N(RR%(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyR$iscCs |jjS(N(Rt one_to_one(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyR&mscCs|jj||ƒS(N(Rtget_prep_lookup(Rt lookup_nametvalue((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyR'qscCs|jj|ƒS(N(Rt get_lookup(RR(((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyR*tscCs |jjƒS(N(Rtget_internal_type(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyR+wscCs |jjS(N(Rtdb_type(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyR,zscCs,dt|ƒj|jjj|jjjfS(Nu <%s: %s.%s>(ttypet__name__R"t_metat app_labelt model_name(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyt__repr__~s  cCsƒ|r |ng}|jjjƒ}|rP|jitd|jjj6ƒ}ng|D]}|jƒt|ƒf^qW}||S(u Return choices with a default blank choices included, for use as SelectField choices for this field. Analog of django.db.models.fields.Field.get_choices(), provided initially for utilization by RelatedFieldListFilter. u %s__isnull( R"t_default_managertalltcomplex_filterRR/R1t _get_pk_valR(Rt include_blankt blank_choicetlimit_to_currently_relatedt first_choicetquerysettxtlst((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyt get_choices…s  +cCs|jj||d|d|ƒS(Nt connectiontprepared(Rtget_db_prep_lookup(Rt lookup_typeR)R?R@((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRA—scCs t|jƒo|jddkS(u$Should the related object be hidden?iÿÿÿÿu+(tboolR (R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyR›scCs |jjƒS(N(Rtget_reverse_joining_columns(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pytget_joining_columnsŸscCs|jj|||ƒS(N(Rtget_extra_restriction(Rt where_classtaliast related_alias((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRF¢scCs d|_dS(u³ Set the related field's name, this is not available until later stages of app loading, so set_field_name is called from set_attributes_from_rel() N(R t field_name(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pytset_field_name¥scCs°|r|jn |jj}|p'|j}|jrR|jrR||jkrRdSn|jrb|jS|jr–|ji|jj ƒd6|j j ƒd6S|j|jr«dndS(Nu model_nameu app_labelu_setu( R/R"RRRR R tdefault_related_nameR1tlowerR0(RRtopts((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pytget_accessor_name¯s    cCsd|jƒS(Nu _%s_cache(RO(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pytget_cache_nameÅscCs |jjƒS(N(Rtget_reverse_path_info(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRÈsN('R.t __module__t__doc__Rt auto_createdRtconcreteteditablet is_relationtnullR RtpropertyRRRRRR R"R#R%R$R&R'R*R+R,R2RR>RARRERFRKRORPR(((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRsB            t ManyToOneRelcBsAeZdZdddedd„Zd„Zd„Zd„ZRS(u+ Used by the ForeignKey field to store information about the relation. ``_meta.get_fields()`` returns this class to provide access to the field flags for the reverse relation. Note: Because we somewhat abuse the Rel objects by using them as reverse fields we get the funny situation where ``ManyToOneRel.many_to_one == False`` and ``ManyToOneRel.one_to_many == True``. This is unfortunate but the actual ManyToOneRel class is a private API and there is work underway to turn reverse relations into actual fields. c CsDtt|ƒj||d|d|d|d|d|ƒ||_dS(NR R R R R(tsuperRZRRJ( RRRRJR R R R R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRÛs cCs#|jjƒ}|jddƒ|S(Nu related_model(t__dict__tcopytpopR (Rtstate((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyt __getstate__èscCs>|jjj|jƒ}|js:tjd|jƒ‚n|S(uY Return the Field in the 'to' object to which this relationship is tied. uNo related field named '%s'(RR/t get_fieldRJRURtFieldDoesNotExist(RR((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pytget_related_fieldís   cCs"|jp|jjjj|_dS(N(RJRR/tpkR(R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRK÷sN( R.RRRSR RRR`RcRK(((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRZÌs    t OneToOneRelcBs&eZdZdddedd„ZRS(uº Used by OneToOneField to store information about the relation. ``_meta.get_fields()`` returns this class to provide access to the field flags for the reverse relation. c CsGtt|ƒj|||d|d|d|d|d|ƒt|_dS(NR R R R R(R[ReRRR( RRRRJR R R R R((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRs N(R.RRRSR RR(((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyReûst ManyToManyRelcBs5eZdZdddedded„Zd„ZRS(u¼ Used by ManyToManyField to store information about the relation. ``_meta.get_fields()`` returns this class to provide access to the field flags for the reverse relation. c Cs‹tt|ƒj||d|d|d|ƒ|rG| rGtdƒ‚n||_|rl| rltdƒ‚n||_||_| |_dS(NR R R u4Can't supply a through model and db_constraint=Falseu5Cannot specify through_fields without a through model(R[RfRt ValueErrortthroughtthrough_fieldsRt db_constraint( RRRR R R RRhRiRj((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRs      cCs{|jj}|jr.|j|jdƒ}nBx?|jD]4}t|ddƒ}|r8|j|jkr8Pq8q8W|jdS(uŠ Return the field in the 'to' object to which this relationship is tied. Provided for symmetry with ManyToOneRel. iu remote_fieldN( RhR/RiRatfieldstgetattrR Rtforeign_related_fields(RRNRtrel((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRc.s  N(R.RRRSR RRRc(((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyRfs   (RSt __future__RRt django.coreRtdjango.utils.deprecationRtdjango.utils.encodingRtdjango.utils.functionalRtRtobjectRRZReRf(((su/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/models/fields/reverse_related.pyt s ´/